(19)

(11)

EP 0 773 820 A1

(12)

(43) Date of publication: 21.05.1997 Bulletin 1997/21 (21) Application number: 95926376.0 (22) Date of filing: 19.07.1995

(51) International Patent Classification (IPC):  B01D 53/ 18( . ) B01D 53/ 38( . ) B01D 53/ 72( . ) B01D 1/ 28( . ) B01D 53/ 58( . ) (86) International application number: PCT/DK1995/000310 (87) International publication number: WO 1996/003191 (08.02.1996 Gazette 1996/07)

(84) Designated Contracting States: DE DK ES FR GB IT NL SE (30) Priority: 22.07.1994 DK 19940000868 (71) Applicant: GRAMKOW, Asger Dk-6440 Augustenborg (DK)	(72) Inventors: GRAMKOW, Asger DK-6440 Augustenborg (DK) BASTHOLM, Jeppe, Christian DK-6400 Soenderborg (DK) (74) Representative: Nielsen, Leif  c/o Patrade A/S Store Torv 1 8000 Aarhus C 8000 Aarhus C (DK)